Binary Clock

Today I made my first "useful" object with an Arduino board. It's a binary clock. OK, you can't read binary clocks and it only can count up to 4 minutes and 15 seconds. You can't even time John Cage's song 4'33" with it but it's one small step towards understanding electronics. The real point of all of this was to figure out how to use an 8 bit shift register. Mission completion.